ᐅ Bartl air-to-water heat pump condensate leaking under the screed

With our indoor heat pump Bartl ECO 5 LI-C/HG, manufactured in 2020, condensate is leaking. The main contractor, Fensterle, is blaming us, stating that the condensate drain should be regularly checked. However, it was not clogged.

Due to missing joints between the floor and the wall of the boiler pedestal and throughout the entire utility room, condensate from the heat pump is leaking under the screed. There is an external condensate outlet, but it apparently cannot collect all of the condensate.

Has anyone had similar experiences?
And how were they resolved?
Are there regulations regarding the design of a utility room in a basement?

Bsee2022 schrieb:

And how were they solved?

A condensate pump and connection to the drainage system would be one possible solution.

Bsee2022 schrieb:

There is an external condensate drain, but apparently it cannot handle all the condensate.

Sounds like someone planned it incorrectly. How small is the drain that it’s insufficient? Could it be enlarged as an alternative to the first suggestion?

Bsee2022 schrieb:

Are there regulations for the design of a technical room in the basement?

No.

Where is the condensate drain located, and where is it connected? Why does the water not drip into this drain but onto the floor instead?
No forum can answer all these questions.
For that, pictures and descriptions from you are necessary.

There are standards (regulations) for the installation of the heat pump and the condensate drain. Have these been followed? (Apparently not!)